package NewCoder;

public class BM75 {
    public int editDistance (String str1, String str2) {
        // write code here
        int len1=str1.length();
        int len2=str2.length();
        int[][] dp=new int[len1+1][len2+1];
        for(int i=0;i<=len1;i++){
            dp[i][0]=i;
        }
        for(int j=0;j<=len2;j++){
            dp[0][j]=j;
        }
        for(int i=1;i<=len1;i++){
            for(int j=1;j<=len2;j++){
                if(str1.charAt(i-1)==str2.charAt(j-1)){
                    dp[i][j]=dp[i-1][j-1];
                }else{
                    dp[i][j]=Math.min(dp[i-1][j-1]+1,Math.min(dp[i-1][j]+1,dp[i][j-1]+1));
                }
            }
        }
        return dp[len1][len2];
    }
}
